Rail road car truck and bearing adapter fittings therefor

Abstract From the Canadian patent

A rail road freight car truck, which may be a Barber S2HD truck or other kind of truck, has , a truck bolster and a pair of side frames the truck bolster being mounted , transversely relative to the side frames. The sideframes are mounted on a pair of wheelsets. The bolster may be resiliently , sprung and may have friction dampers. Either the friction dampers or the sideframe column wear , plates may have a non-metallic wear plate or wear surface, which may be , replaceable and which , may tend to exhibit non-stick slip or reduced stick slip behaviour in use. Bearing adapters may be , mounted on the bearings of the wheelsets and resilient pad members may be , mounted on the bearing …